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BOLT DOGGING MEANS.

APPLICATION FILED NOV- 15. I918. 1,31 1,3040

INVENTOR BY ATTORNEY Patented July 29, 1919.

Z SHEETSSHEET I- H. e. VOlGH T. BOLT DOGGING'MEANS. APPL ICATION FILED NOV. 1 5. I918.

Patented July 29, 1919.

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\ t E g a S I l I 25 I 22 Q Z3 W 23 I 16' E I 15 I J I 18 INVENTOR ATTORNEY HENRY G. VOIGHT, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO SARGENT & COMPANY, OF NEW HAVEN, CONNECTICUT, A CORPORATION OF CONNECTI- CUT.

BOLT-DOGGING MEAN Specification of Letters Patent.

Original application filed December 8, 1917, Serial No. 206,323. Divided and this application filed November 15, 1918. Serial No. 262,659.

To all whom it may concern:

Be it known that I, HENRY G.Vo1erir, a

citizen of the United States, residing in New Britain, county of Hartford, and State of Connecticut, have invented certain new and useful Improvements in Bolt-Dogging Means, of which the following is a full, clear, and exact description. s

This invention relates to means for dogging a bolt in its retracted position, the invention being illustrated in connection with a vertically sliding bolt of an emergency exit lock or so-called panic bolt of the type which is applied to the doors of school-houses,

theatres, department stores, and other buildings for facilitating exit where a fire or the it being obvious, however,

like causes panic, that the utility of the bolt dogging means herein disclosed is not limited to the dogging of a panic bolt.

One construction of the type of panic bolt just referred to is disclosed in my copending application, Serial No. 206,323, filed division.

The herein disclosed invention refers more particularly to bolt dogging mechanism wherein a door is providedwith a bolt adapted to engage a'keeper or strike plate on the lintel and arranged to. be released from said strike plate or keeper by means of the door.

cross-bar on the inner face of a swinging The bolt which engages the strike plate just mentioned is provided with as the door upon which the for retaining 'a dogging means for retainingthe same in its retracted position and the dogging means is constructed to be automatically released bolt is mounted whereby the is moved to its closed position,

bolt is released to slide into engagement with its keeper or strike plate.

The'primary b'ect of the present invention is to provide improved detent means bolt in its retraotedposition.

Another object of the invention is to furnish a detent device of very simple and efiicient construction, which cooperates very abolt of the sliding type,

door, and which is automatically released. To these and other ends the invention consist the :novel tenur and b net o plate-or keeper on the cross-bar above of Fig.

of parts to 'be hereinafter described and claimed. 7

In the accompanying drawings,-

Figure 1 is an inside elevation of part of a door equipped with a panic bolt, provided with one form of my bolt dogging means, the door being shown in its closed position.

Fig. 2 is an enlarged section on line 2-2 of Fig. 1, showing the detent device, the bolt being in the protracted position.

Fig. 3 is a view similar to Fig. 2, but showing the bolt in theretracted position, and the door partly opened.

Fig. at is an enlarged sectionon line 4-4: of Fig. 1

I Fig. 5is a view similar to Fig. 4, show- .ing the bolt doggel inthe retracted position by the sliding detent plunger.

Fig. 6 is arear view of the casing in which plate of said casing removed, the bolt being in the protracted position; and December 8, 1917, of which this case is a Fig. 7 is a similar view showing the bolt dogged in the retracted position.

Referring-to the drawings, I have shown my improvements applied to a panic bolt ,mechanism, embodying a bolt at the upper edge of the door for cooperating with a strike the lintel and a swinging cross-bar extending across the door and adapted to retract the bolt when said crossbar is moved. The bolt is preferably of the square head type, that is the upper end of the bolt is at right angles to its axis, instead of being beveled like a latch bolt. This type of bolt mustobviously be held in its retracted position while the same is being swung into .alinement with its strike plate. I, therefore, provide the sliding bolt with a detent mechanism for automatically holding the same in its retracted position, when it is released by mentioned, means being provided for releasing the detent automatically when the door is closed again, so that the bolt thereupon takes into its keeper,

The door A is mounted in a frame or casing 13, and is adapted to open outward, as

usual in doors equippedwith emergency exit looks or fasteners. It will be understood, of course, that the door is hinged at the right 1 and that the bolt mechanism is arranged adjacentthe left hand edge. The

Patented July 29, 1919.

mounted in said casing, a dogging device mounted within said casing for dogging said bolt in its retracted position, a shoulder upon said dogging device, a proj eotion upon said bolt cooperatmg with said shoulder for normally retaining said dogging device in its inoperative position, means for moving said dogging device into dogging position when said bolt is retracted, and means for automatically releasing said dogging device when said door is closed.

3. In combination with a door and door frame, a casing applied to said door adjacent an edge thereof, a sliding bolt movable in said casing, a keeper upon said door frame to receive said bolt, a hollow detent slidably mounted in said casing to dog said bolt in its retracted position, a spring housed within said hollow detent and arranged to move the same into dogging position, and means upon said keeper for moving said detent out of dogging position.

4. In combination with a door and door frame, a casing applied to said door adjacent an edge thereof, a sliding bolt movable in said casing, a keeper upon said door frame to receive said bolt, a detent mounted to slide transversely within said casing and movable into and out of dogging engagement' with said bolt, said detent having an end extending outwardly through said oasing, a spring for moving said detent into dogging engagement with said bolt, and means upon said keeper positioned to engage the exposed end of said detent to force copies of this patent the same inward out of its bolt dogging position.

5. In a casing, a slidably mounted bolt, an inwardly directed guide pin upon a face of said casing, and means for dogging said bolt against movement, comprising a hollow detent slidably mounted upon said guide pin, and a spring for moving said detent into dogging engagement with said bolt.

6. In a casing, a slidably mounted bolt, an inwardly directed guide pin within said casing, and means for dogging said bolt against movement, comprising a detent slidably mounted within said casing, said detent having a socket formed in one end to slidably receive said guide pin and having its opposite end protruding through a wall of said casing, and a spring for moving said geilzent into dogging engagement with said 7 In a casing, a slidably mounted bolt, an inwardly directed guide pin within said casing, a detent slidably mounted within said casing and movable into and out of dogging engagement with said bolt, said detent having an end protruding outwardly through a wall of said casing and having a socket formed in its opposite end to slidably receive said guide pin, and a spring operatively mounted within said socket to move said detent into dogging position.

In witness whereof, I have hereunto set my hand on this 12th day of Nov., 1918.

HENRY G. VOIGI-IT.

Commissioner of Patents,

Washington, D. 0. 

